Turbine cooling - aircraft engine, Other Engineering

Assignment Help:

Turbine cooling  Airflow:

Figure illustrates the turbine cooling airflow of a typical gas turbine engine. The outward flow of cooling air is controlled by air seals of multi-groove construction and the arrangement is such that the turbine discs obtain the maximum possible cooling from the airflow. Interstage seals are incorporated and they are made in such a way that the front sections provide less restriction to the passage of air than the rear sections do. The result is that the rate at which the cooling air flows across the seals is sufficient to prevent any inward flow of hot gases. The front face of each disc receives a greater airflow than the rear.

1891_turbine cooling airflow.png

High pressure cooling air is also directed to the engine's nozzle guide vanes and turbine blades. These components, which are externally heated by the high temperature gas stream, are cooled by ducting air through air passages formed inside the items themselves. After completing its task, the air is exhausted into the engine exhaust gas flow and thence to atmosphere.

218_turbine cooling airflow1.png


Related Discussions:- Turbine cooling - aircraft engine

Vertical shaft rotary kiln method, Explain the process of manufacturing ord...

Explain the process of manufacturing ordinary Portland cement by vertical shaft rotary kiln method and write chemistry of hardening and setting of it with chemical equations.  D

Exhaust duct arrangement in aircraft, Exhaust duct arrangement in Aircraft:...

Exhaust duct arrangement in Aircraft: Exhaust ducts are invariably positioned to ensure that on the ground as the hot gases are directed away from the maintenance crews and air

Interlaminar shear strength , Composites have low shear strengths compared ...

Composites have low shear strengths compared to longitudinal strengths. The ILSS test is a simple 3 point bend test, requiring a small amount of material. A span to depth ratio

Dsp, Dit fft idft

Dit fft idft

Flight control - estimators for control, Estimators for control: App...

Estimators for control: Applying control by the state itself needs transducers measuring each componentof x. If instead we apply control using the estimate of state (as prov

Zener diode, easy defination of zener diode nd its application and characte...

easy defination of zener diode nd its application and characteristics ?

Metallurgy engg., why practical engineering materials are homogeneous and i...

why practical engineering materials are homogeneous and isotropic?

Gas turbines, factors affecting engine performance

factors affecting engine performance

Numeric computation matlab, Expertsmind.com offers Performing Numeric Comp...

Expertsmind.com offers Performing Numeric Computation matlab assignment help MATLAB contains numbers, precise, and technological innovation features to support all common tech

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd